Break-even calculator
Enter fixed costs, price and variable cost per unit to see the break-even point.
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Units to break even
500
- Break-even revenue
- R$25,000.00
- Contribution margin per unit
- R$20.00
- Contribution margin
- 40.0%
Your result in words
With fixed costs of R$10,000.00, a price of R$50.00 and a cost of R$30.00 per unit, you break even at 500 units, or R$25,000.00 in revenue.
Informational estimate, without fees or inflation. Check taxes and charges for your case; the real result may differ.
How it works
What break-even is
It is the quantity sold where revenue exactly covers costs: below it you lose money, above it you profit. It helps set prices, sales targets and check if a business stands up.
Cautions
It covers a single product and assumes constant price and costs. With several products, use the average contribution margin.
Formula
How to calculate
Q is the break-even quantity, CF the fixed costs, P the selling price, c the variable cost per unit and R the break-even revenue. The quantity is rounded up.
Example
With round numbers, so you can check the math:
With fixed costs of R$10,000.00, a price of R$50.00 and a cost of R$30.00 per unit, you break even at 500 units, or R$25,000.00 in revenue.
Frequently asked questions
What are fixed costs?
Costs that do not change with sales, like rent, salaries and software.
And variable costs?
Costs that grow with each unit sold: raw material, commission, packaging, shipping.
Why round up?
Because you cannot sell half a unit: the whole unit is needed to cover the cost.
Math checked by the JuntaTudo team · updated on Nov 12, 2026
